A single use flexible disposable oral device, which is operated either by the tongue or by a chewing action, for cleaning the entire mouth cavity. The oral device contains a dentifrice and is made of a spongy material. It is formed as a cube having faces and is provided with voids at its external envelope. The edges and vertexes of the external envelope may be harder than the faces and an internal core of the cube. The oral device is contained within a package that may be flat and may contain flushing liquid.